Improvement in boiler-legs



strength, &c.

UNITED STATES PATENT OFFICE.

-ANDREW TAYLOR AND JAMES QUINN, OF PORTLAND, MAINE.

IMPROVEMENT IN BOILER-LEGS.

Specification forming part of Letters Patent No. 154,355, dated August25, 1874; application filed June 5,1874.

To all whom it may concern Beit known that we, ANDREW TAYLOR and JAMESQUINN, of Portland, in the county of Cumberland and State of Maine, haveinvented l certain new and useful Improvements in Boiler- Legs; and wedo hereby declare that the following is a'full, clear, and exactdescription thereof, which will enable others skilled in the art towhich itpertains to make and use the same, reference being had to theaccompanying drawings and to the letters of reference marked thereon,which form a part of this specification.4

Figure 1 is an end view of a boiler with our improvements attachedthereto. Fig. 2 is a back view of the supplemental piece shown inposition in Fig. l. Fig. 3 is a side view in section ofthe same.

Same letters show like parts. The object of our invention is to producea supplemental piece or device to be attached to the lower side of thefront of a boiler, the purpose of which will be hereinafter described.Heretofore the front of the boiler has been composed of a single pieceor pieces of metal riveted together, the said pieces, when so bolted,being of ,such 'shape as to form the head of thel boiler. The greatdifeulty'existing when the boiler-head was thus constructed was that theprojecting parts forming the front of the legs would soon become so wornas to cause either the entire, headwto be removed and a new onesupplied, or to require a patch or piece of metal to be riveted overthese projecting parts in order to give proper This` not only causedlarge eX- pense, but gave the head of the boiler an unfinished and roughappearance. Moreover, the result wasvery unsatisfactory. Another troubleexisted, in that if the projecting parts of the head that form the frontof the boiler-legs should not exactly fit the spaces inv tended forthem, it would be almost impossible to bring them into their properplaces, and

-secured to the front of the boiler.

asmuch as We provide supplemental pieces a to take the place of theseprojecting parts of the boiler-head. These pieces are of thicker metalthan the other parts of the boiler-head, and will, in consequence, standlonger wear. It is important that they should be of heavier material,for the reason that, as has before been intimated, they are obliged tostand much more wear by being nearer the floor of the fire-room andsubjected to the action of the implements used for supplying the furnacewith fuel, 85e. These pieces a are made with a projecting lip or ange,b, shown in Figs. 2 and 3, and extend nearly, but not quite, along theentire length of the piece a., and are of such dimensions as to t thespace between the lower edge of the front of the boiler-head and thebottom ofthe outer pieces of the boiler, where theyare bent so as toform the legs ofthe same. The head is first The pieces a, with theirlian ges b, are then applied to the legs, and form the front of thesame, as before described. The part c of the piece a overlaps theoutside edge of the lower part of the boilerhead, as shown in Fig. l,and is riveted thereto. This piece a is otherwise secured by bolts orrivets passing through the iiange b on each side, and into the outerpart d of the boilerleg. If these pieces should become worn out beforethe other parts of the head, they can be easily removed and new vonessupplied.

What we claim as our invention,'and desire to secure by Letters Patent,is

The combination, with a boiler-leg. of the piece a, having the flange band overlap c, when .applied iu the manner and for the purposes herein4set forth. Y

In testimony that we claim the foregoing as our own we afx oursignatures in presence of two witnesses. A

ANDREW TAYLOR. JAMES QUINN. Witnesses:

WM. HENRY CLIFFORD, FRANK H. J oRDAN.

